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Finding the Fourth Proportional to 462,979.80, 694,519.52 and 147,362.90

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Solution

The fourth proportional to 462,979.80, 694,519.52 and 147,362.90 is: 221,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,979.80 : 694,519.52 = 147,362.90 : x
  2. Step 2: Convert to fraction form
    462,979.80/694,519.52 = 147,362.90/x
  3. Step 3: Cross multiply
    462,979.80x = 694,519.52 × 147,362.90
  4. Step 4: Simplify right side
    462,979.80x = 102,346,406,364.40
  5. Step 5: Solve for x
    x = 102,346,406,364.40/462,979.80
  6. Step 6: Final answer
    x = 221,060.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.